import { saveAs } from 'file-saver';
import { ElLoading, ElMessage } from 'element-plus';
import service from '/@/utils/request';
import { Session } from '/@/utils/storage';
import axios from 'axios';

let downloadLoadingInstance: any;




/**
 * 通用js方法封装处理
 * Copyright (c) 2019 ruoyi
 */

// 日期格式化
export function parseTime(time: any, pattern?: any) {
  if (arguments.length === 0 || !time) {
    return null
  }
  const format = pattern || '{y}-{m}-{d} {h}:{i}:{s}'
  let date
  if (typeof time === 'object') {
    date = time
  } else {
    if ((typeof time === 'string') && (/^[0-9]+$/.test(time))) {
      time = parseInt(time)
    } else if (typeof time === 'string') {
      time = time.replace(new RegExp(/-/gm), '/').replace('T', ' ').replace(new RegExp(/\.[\d]{3}/gm), '');
    }
    if ((typeof time === 'number') && (time.toString().length === 10)) {
      time = time * 1000
    }
    date = new Date(time)
  }
  const formatObj = {
    y: date.getFullYear() as any,
    m: date.getMonth() + 1 as any,
    d: date.getDate() as any,
    h: date.getHours() as any,
    i: date.getMinutes() as any,
    s: date.getSeconds() as any,
    a: date.getDay() as any
  } as any
  const time_str = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result: any, key: any) => {
    let value = formatObj[key]
    // Note: getDay() returns 0 on Sunday
    if (key === 'a') { return ['日', '一', '二', '三', '四', '五', '六'][value] }
    if (result.length > 0 && value < 10) {
      value = '0' + value
    }
    return value || 0
  })
  return time_str
}

/**
 * 表单重置
 * @param this 当前表单对象
 * @param refName 表单ref名称
 * */
export function resetForm(this: any, refName: any) {
  if (this.$refs[refName]) {
    this.$refs[refName].resetFields();
  }
}

/**
* 参数处理
* @param {*} params  参数
*/
export function tansParams(params: any) {
  let result = ''
  for (const propName of Object.keys(params)) {
    const value = params[propName];
    var part = encodeURIComponent(propName) + "=";
    if (value !== null && value !== "" && typeof (value) !== "undefined") {
      if (typeof value === 'object') {
        for (const key of Object.keys(value)) {
          if (value[key] !== null && value[key] !== "" && typeof (value[key]) !== 'undefined') {
            let params = propName + '[' + key + ']';
            var subPart = encodeURIComponent(params) + "=";
            result += subPart + encodeURIComponent(value[key]) + "&";
          }
        }
      } else {
        result += part + encodeURIComponent(value) + "&";
      }
    }
  }
  return result
}

// 验证是否为blob格式
export async function blobValidate(data: any) {
  try {
    const text = await data.text();
    JSON.parse(text);
    return false;
  } catch (error) {
    return true;
  }
}


/**
 * 下载普通文件
 * @param url 
 * @param params 
 * @param filename 
 * @param config 
 */
export const download = async (url: any, params: any, filename: any, config?: any) => {
  try {
    downloadLoadingInstance = ElLoading.service({ text: "正在下载数据，请稍候", background: "rgba(0, 0, 0, 0.7)", })
    const data = await service.post(url, params, {
      transformRequest: [(params_1: any) => { return tansParams(params_1); }],
      headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
      responseType: 'blob',
      ...config
    });
    const isBlob = await blobValidate(data);
    if (isBlob) {
      const blob = new Blob([data] as any);
      saveAs(blob, filename);
      downloadLoadingInstance.close();
    } else {
      const resText = await data.text();
      const rspObj = JSON.parse(resText);
      ElMessage.error(rspObj.msg);
    }
  } catch (r) {
    Promise.reject(r);
    ElMessage.error('下载文件出现错误，请联系管理员！');
  }
}


/**
 * 压缩文件下载
 * @param url 
 * @param name 
 */
export const zip = async (url: any, name: any) => {
  try {
    url = import.meta.env.VITE_API_URL + url;
    await axios({
      method: 'get',
      url: url,
      responseType: 'blob',
      headers: {
        'Authorization': 'Bearer ' + Session.getToken(),
        'datasource': localStorage.getItem("dataName")
      }
    }).then(async (res) => {
      const isBlob = await blobValidate(res.data);
      if (isBlob) {
        const blob = new Blob([res.data] as any, { type: 'application/zip' })
        saveAs(blob, name)
      } else {
        const resText = await res.data.text();
        const rspObj = JSON.parse(resText);
        ElMessage.error(rspObj.msg);
      }
    })
  } catch (r) {
    Promise.reject(r);
    ElMessage.error('下载文件出现错误，请联系管理员！');
  }
}
/**
 * 下载Oss文件
 * @param ossId
 * */
export const ossDownload = async (ossId: string) => {
  try {
    downloadLoadingInstance = ElLoading.service({ text: "正在下载数据，请稍候", background: "rgba(0, 0, 0, 0.7)", })
    var url = import.meta.env.VITE_API_URL + '/system/oss/download/' + ossId
    await axios({
      url: url,
      method: 'get',
      responseType: 'blob',
      headers: { 'Authorization': 'Bearer ' + Session.getToken() }
    }).then(async res => {
      const filename = res.headers['download-filename']
      if (filename) {
        const blob = new Blob([res.data], { type: 'application/octet-stream' });
        saveAs(blob, decodeURIComponent(filename));
      } else {
        const resText = await res.data.text();
        const rspObj = JSON.parse(resText);
        ElMessage.error(rspObj.msg);
      }
    }).finally(() => {
      downloadLoadingInstance.close();
    })
  } catch (r) {
    Promise.reject(r);
    ElMessage.error('下载文件出现错误，请联系管理员！');
  }
}




/*
* 添加日期范围，用于搜索
* @param params 参数对象
* @param dateRange 日期范围数组
* @param propName 日期字段名
* @returns {*} 
*/
export function addDateRange(params: any, dateRange: any, propName?: any) {
  let search = params;
  search.params = typeof (search.params) === 'object' && search.params !== null && !Array.isArray(search.params) ? search.params : {};
  dateRange = Array.isArray(dateRange) ? dateRange : [];
  if (typeof (propName) === 'undefined') {
    if (typeof (propName) === 'undefined') {
      search.params['beginCreateTime'] = dateRange[0];
      search.params['endCreateTime'] = dateRange[1];
    } else {
      search.params['begin' + propName] = dateRange[0];
      search.params['end' + propName] = dateRange[1];
    }
    return search;
  }
}

/**
 * 回显数据字典
 * @param datas 数据字典
 * @param value 值
 */
export function selectDictLabel(datas: any, value: any) {
  if (value === undefined) {
    return "";
  }
  var actions = [] as any;
  Object.keys(datas).some((key) => {
    if (datas[key].value == ('' + value)) {
      actions.push(datas[key].label);
      return true;
    }
  })
  if (actions.length === 0) {
    actions.push(value);
  }
  return actions.join('');
}

// 回显数据字典（字符串、数组）
export function selectDictLabels(datas: any, value: any, separator: any) {
  if (value === undefined || value.length === 0) {
    return "";
  }
  if (Array.isArray(value)) {
    value = value.join(",");
  }
  var actions = [] as any;
  var currentSeparator = undefined === separator ? "," : separator;
  var temp = value.split(currentSeparator);
  Object.keys(value.split(currentSeparator)).some((val) => {
    var match = false;
    Object.keys(datas).some((key) => {
      if (datas[key].value == ('' + temp[val])) {
        actions.push(datas[key].label + currentSeparator);
        match = true;
      }
    })
    if (!match) {
      actions.push(temp[val] + currentSeparator);
    }
  })
  return actions.join('').substring(0, actions.join('').length - 1);
}

// 字符串格式化(%s )
export function sprintf(str: any) {
  var args = arguments, flag = true, i = 1;
  str = str.replace(/%s/g, function () {
    var arg = args[i++];
    if (typeof arg === 'undefined') {
      flag = false;
      return '';
    }
    return arg;
  });
  return flag ? str : '';
}

// 转换字符串，undefined,null等转化为""
export function parseStrEmpty(str: any) {
  if (!str || str == "undefined" || str == "null") {
    return "";
  }
  return str;
}

/**
 * 数据合并
 * @param {*} source 数据源
 * @param {*} target 目标数据
 * @returns
 * */
export function mergeRecursive(source: any, target: any) {
  for (var p in target) {
    try {
      if (target[p].constructor == Object) {
        source[p] = mergeRecursive(source[p], target[p]);
      } else {
        source[p] = target[p];
      }
    } catch (e) {
      source[p] = target[p];
    }
  }
  return source;
}

/**
 * 构造树型结构数据
 * @param {*} data 数据源
 * @param {*} id id字段 默认 'id'
 * @param {*} parentId 父节点字段 默认 'parentId'
 * @param {*} children 孩子节点字段 默认 'children'
 */
export function handleTree(data: any, id: any, parentId?: any, children?: any) {
  let config = {
    id: id || 'id',
    parentId: parentId || 'parentId',
    childrenList: children || 'children'
  };

  var childrenListMap = {} as any;
  var nodeIds = {} as any;
  var tree = [] as any;

  for (let d of data) {
    let parentId = d[config.parentId];
    if (childrenListMap[parentId] == null) {
      childrenListMap[parentId] = [];
    }
    nodeIds[d[config.id]] = d;
    childrenListMap[parentId].push(d);
  }

  for (let d of data) {
    let parentId = d[config.parentId];
    if (nodeIds[parentId] == null) {
      tree.push(d);
    }
  }

  for (let t of tree) {
    adaptToChildrenList(t);
  }

  function adaptToChildrenList(o: { [x: string]: any }) {
    if (childrenListMap[o[config.id]] !== null) {
      o[config.childrenList] = childrenListMap[o[config.id]];
    }
    if (o[config.childrenList]) {
      for (let c of o[config.childrenList]) {
        adaptToChildrenList(c);
      }
    }
  }
  return tree;
}


/**
 * 构造结构数据
 * @param {*} data 数据源
 * @param {*} object 对象结构
 */
export function handleList(data: any, object: any) {
  let list = [] as any;
  for (let d of data) {
    let obj = {} as any;
    for (let o in object) {
      obj[o] = d[object[o]];
    }
    list.push(obj);
  }
  return list;
}

